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URN	etd-0805114-100459
Author	Ang-chih Lai
Author's Email Address	No Public.
Statistics	This thesis had been viewed 5567 times. Download 457 times.
Department	Mechanical and Electro-Mechanical Engineering
Year	2014
Semester	1
Degree	Master
Type of Document
Language	zh-TW.Big5 Chinese
Title	Numerical model of carbon dissolution in liquid iron
Date of Defense	2014-08-12
Page Count	83
Keyword	Numerical simulation liquid iron carbon dissolution
Abstract	In this study, a numerical model is built to investigate the factors on carbon dissolution rate and develop a lump system for carbon particle dissolution in hot liquid metal. We assume the carbon particles dissolve in the molten iron is a quasi-steady process. Therefore, the steady state model has been developed. The simulation data shows the distribution of mass dissolution rate at the particle surface is significantly affected by the flow circulation behind a particle as a relative flow velocity is applied. The lump system has been developed by the correlation of Reynolds number and Schmidt number, which can predict the carbon particles dissolve at times of different state. The correlation of mass/heat transfer are as following: Sh=2.81+0.52 Re^0.52 Sc^0.38 Nu=0.53+0.27 〖Re〗^034 Pr^0.16 The study also established a transient model, and compare the time of dissolution between two models. Simulation results of transient model  show that when the Reynolds number is smaller, the dissolution rate of carbon particles goes to be slightly longer.in addition this study also building a two dimension injection model through the simulation result of different model confirm the reliability of lump system
Advisory Committee	Chien-Hsiung Tsai - chair Tsou, Ying - co-chair Sheng-Yen Hsu - advisor
Files	etd-0805114-100459.pdf Indicate in-campus at 2 year and off-campus access at 2 year.
Date of Submission	2014-09-05

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